One thing I absolutely can't stand is power cords. They're not only energy guzzlers, but the crowded wires are enough to give me a heart attack. Finally, there is a solution to the energy waste by the name of the 'Power USB' power strip, which features four universal power sockets and one USB port.
Not only is it travel-friendly, but the 'Power USB' power strip actually allows you to turn of any given socket or two from your computer. However, two of the power sockets are always kept on while the other two have the ability to shut off. Finally, something simple and efficient!